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Chapter 3 Features and Functions
Amplitude Modulation (AM)
3
Modulating Source
The waveform generator will accept an internal or external modulation
source for AM.
• Modulating source: Internal (default), Other Channel, or External.
•
If you select the External source, the carrier waveform is modulated
with an external waveform. The modulation depth is controlled by the
±5 V signal level present on the rear-panel Modulation In connector.
For example, if you have set the modulation depth to 100%
, then
when the modulating signal is at +5 volts, the output will be at the
maximum
amplitude. When the modulating signal is at -5 volts, then
the output will be at the
minimum
amplitude.
The external modulation
input has -3 dB bandwidth of 100 kHz.
•
Front-Panel Operation
: After enabling AM, press the
Source
softkey.
•
Remote Interface Operation
:
AM:SOURce {INTernal|EXTernal|CH1|CH2}
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